I called ahead for a beef gluten free pasty. Iron Town Pasties was very accommodating -- even when I called to change our arrival time a second time. My companion ordered the regular pasty. They baked my GF pasty in a paper bag to avoid cross contamination. The end result was tasty.
When I passed through the area earlier this year, I was unable to stop by, but I had a nice chat with the owner who is very informed about taking precautions. While not "gluten free," these pasties are "gluten friendly." Read other reviews for other people's positive experiences.